National Geographic : 1924 Dec
LEAD gives to chinaware its beauty and lustre GLAZED china is nothing more than clay shaped in various forms and covered with a thin skin of lead glaze. It is this thin coating that transforms the rough porous clay body into a beautiful, smooth, lustrous china plate or cup or saucer. For twenty centuries pottery has been coated with lead glazes. Today lead is used in making both transparent lead glazes for fine chinaware and brilliant, glossy opaque enamel glazes put on sani tary bathroom fixtures, swimming pool, bathroom and kitchen tile and ornamen tal tile. Any one of the three lead products, white-lead, red-lead or litharge, can be used in making lead glazes. Makers of fine chinaware will use, as does one manu facturer, as much as 80,000 pounds of white-lead a year and only 1,000 pounds of red-lead. Others in the industry will reverse the above figures and use many times as much red-lead as white-lead. Although lead in pot L - tery is constantly serving Sand helping to beautify qr your home, the tonnage Sof lead used in this way "P ?4 is not so great as that used in paint. Everywhere you .- |-:- go you see wh ite-leadpaint X protecting II A houses from . ,.... . ..... _ - . ...... .. the attacks of weather. Approximately 350,000,000 pounds of white-lead are used on wooden and other non-metallic sur faces each year, to save the surface. Red lead paint prevents rust from eating into S and destroying iron and steel. Producers of lead products Dutch Boy white-lead and Dutch Boy red lead are the names of the pure white-lead and red-lead made and sold by National Lead Company. On every keg is repro duced the picture of the Dutch Boy Painter shown below. This trademark guarantees a product of the highest quality. Dutch Boy products also include linseed oil, flatting oil, babbitt metal and solder. National Lead Company also makes lead products for practically every purpose to which lead can be put in art, industry and daily life. If you want information re garding any particular use of lead, write us. If you wish to read further about this wonder metal, we can tell you of some in teresting books on the subject. The latest and probably most complete story of lead and its many uses is "Lead, the Precious Metal," published by Century Co., New York. Price $3.00. If you are unable to get it at your bookstore, write the pub lisher or us. NATIONAL LEAD COMPANY New York, 111 Broadway; Boston, 131 State St.; Buffalo, 116 Oak St.; Chicago, 900 West 18th St.; Cincinnati, 659 Freeman Ave.; Cleveland, 820 West Superior Ave.; St. Louis, 72T Chestnut St.; San Francisco, 485 California St.; Pittsburgh. National Lead & Oil Co. of Pa., 316 Fourth Ave.; Philadel phia, John T. Lewis & Bros. Co., 437 Chestnut St.